Shock-absorber



M. MALLURY.

SHOCK ABSGRSER APPLICAHON HLEO SEPT 2. 1919.

Patented Mar. 2, 1920 2 SHEETS-SHEET h M. MALLUHY SHOCK ABSORBER.

awrucmum HLED SP.1 2.1M:

2 SHEETS-SHEET 2| lntontvd Mar. 2, 1920.

MARION MALLORY. 0F WICHI'IA. KANSAS.

SHOCK-ABSORBER Specification of Letters Patent.

Patented Mar. 2, 1920.

Application filed September 2. 1919. Serial No. 321.054.

State of Kansas, have invented certain new and useful. Improvements in Shock-Absorbers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it uppertains to make and 'use the same.

This invention relates to improvements in shock absorbers and it is especially designed for use in connection with automobiles. al though it may be used for other similar pur oses.

T e principal object of the invention is to provide a device of the above mentioned character which is simple and cflective. strong, durable and inexpensive to menu facture.

Another object of the invention is to provide a shock absorber embodying a new and novel construction of levers whereby the device will readily assume the proper position and eti'eetively absorb variable shocks; thewronstruction of the device beiir such that it may be readily and easily app .ied to most any style of automobiles now in use.

other objects and advantages of the invention will be apparent during the course of the following: description.

In the accompanying drawing-s forming a part 015 this specification and in which like numerals are employed to designate like parts throughout the same;

Figure 1, is aside elevation of a device constructed in accordance with my invention, illustrating the manner of attaching the same to a motor vehicle.

'Fig. 2. is an enlarged view thereof. the cylinder being shown in vertical section and the levers broken away.

l ies. 2-} to T inclusive. are views on the planes of the lines i -4. 5-!i. G n

and 7-7 respectively of Figs. 1 and Fig. 8 is a. view like Fig. 1. the construe tion of the parts being slightly diflcrent.

In the drawings. wherein for the purpose of illustration is shown a preferred form of my. invention the numeral 1 indicates a chassis bar or side-bar of an automobile to which is secured the usual spring 2. and axle 3. the partsbeiug of the usual construction and freely movable with respect to each other.

lnasnnlch as the construction of my de vice, as illustrated in Figs. 1 and 2, is slightly different from. that shown in F ig. R, I will first set forth the arrangement of parts as shown in. Figs. 1 and 2,, in which 4 indicates as a whole a cushioning device. This cushionin r device includes a cylinder 5, within whic a piston-rod and pistonhoacl, 6 and 7, are movable. The lower e l of the cylinder is preferably closed by a flanged head 8 which is bolted thereto and through which extends a central bore into which the bushing 9 is snugly 'fitted. Leakage between the piston rod 6 and bushing 9 is further prevented by use of packing members 10, held in place .by the fingers 11 and also by the packing ring 12 and cap 13 which close the end of the cylinder and tightly surround the piston-rod. Oil or other suitable cushioning medium is sup plied to the cylinder through the screwlug 14. at the top of the cylinder-and circu ates back and forth throu h the openings 15 in the-piston-head 7. 'T e cylinder is further 3 provided with an outwardly extending lug or projection 16 by means of which the cylinder is pivotally mounted on the end of the. chassis bar 1. The manner of this connection is more clearly shown in Fig. 5, in which I provide. plates 17 which are pivotally mounted on the. short axle 18 passing through one end of the chassis. bar 1. Be tween the. plates 17 is secured the lug 16 by Ifieans of the bolts 19.

Pivotally secured to the piston-rod 6 is a substantially curved lever 20. The method and manner of connection of this lever to the end of the piston-rod is more clearly shown ,in Fig. 6,.in which the end of the piston-rod 6 is provided with an eye 2i through which the short, hollow stub axle 22 is passed Axle 22 is threaded on its up posite ends. The extreme. and of the lever 20 is thrmuhal thereon. and the parts held together by the nuts 23. The, opposite end of lever 20 is pivoted to a substantially ellipl ieal plate 524 as more clearly illustrated in Figs. 3 and 4. In this instance it will be seen that the plate 24 projects into the s ace between the upper and lower flanges o the ax-lefi. and is secured in position by bolts 25,

which extend therethrongh, and then thronglra second. plate 26 on the opposite side of the axle 3. a

' Secured to the level-20 at a point between the middle and time! its ends is a link 28.

'end of the link 28 is pivotall One end of thelink is pivoted, in a like manner to those already set forth, at 29 to the lever 20. This point of pivot serves as the bearin or point of oscillation for the lever 20 w en these arts are subjected to sudden jars during tie travel of the automobile over an uneven road. The opposite ecured to a plate 30 bolted or otherwise astened to the chassis bar 1, as more particularly shown in Fig. 7.

Referring now to Fig. 8. wherein the parts are assembled in a slightly different manner, it will be seen that all of the parts are the same except that instead of the cylinder 4 being free to move about a point of pivot :18 hereinbefore set forth. it is rigidlv secured to the chassis bar 1, by an arm 31. \Vith this construction it will therefore be necessary to provide a swinging connection or substantially flexible connection between the end of the piston 6 and end of the lever '20. To this end I preferably employ a sec ond link 32 which is pivoted at 33 to the lever 20 and at 34 to the end of the piston rod 6 as shown in Fig. 8.

It will be seen that by a construction as above set forth that when the car strikes a rut or uneven place in the road, the chassis bar 1 and axle will. be moved with respect to each other. and thus eausc the lever 20 to oseillatc or swing up or down on its point of hearing 25). During this movement of the lever :20 and link 2H thc pi ton (5 will move in a direction in thc cylinder to absorb the sudden jar or jolt. Such action of the piston will be caused by thc oil contained i 'the cylinder which [)tlHMh through the openings if) in thc lu-ad T and rctards the piston thereby forming in cll'cct a cushion for the piston. During thi niovcmcut of thc piston. thc cylindcr 5 will be free to swing about its point of pivot. and thus assume a position to permit etl'eciive working of the piston.

The same effect is also gained by the arrangement of parts as set forth in Fig. 8, hence there need be no further descri tion or explanation of the operation thereo As shown, all points of pivot between the various parts are in the form of short stub axles or shafts. and each axle is provided with a central bore and erforations communicating therewith w ereby the arts may be kept lubricated by means 0 the grease cups 3.") carri d by each.

It is to he undelsttwrl that the form of my invention herein shown and described is to be taken as a preferred embodiment of the same and various changes in the shape, size, and'arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

I claim:

1. A vehicle cushioning device including a chassis bar and an axle freely movable to ward and from each other; a cushioning device connected to the end of said chassis bar. a lever tulcrumcd at one of its ends to said cushioning de\ icc. and a link pivoted to said lever. the opposite ends of said lever and link beingpivotally secured to the axle and chassis bar, substantially as described.

2. A vehicle cushioning device including a chassis bar and an axle freely movable toward and from each other; a cylinder fix edly connected to said chassis bar, a piston movable in the cylinder, a link pivotally connected to said piston. a lever fnlcrumed at one end to said link and at its opposite cud to the axle. and a second link pivoted to said lever at a point beyond the center .of the latter. the other end of said second link being pivoted to the chassis bar.

In tcstnnouv \vhei'cof l have hereunto set my hand.

M A R [UN MALLORY. 

